PS-6020-RHS High Speed Rebound Shaft Assembly

Penske Racing Shocks, a world leader in racing shock technology, announces the release of their new high speed rebound shaft assembly.

The high speed rebound shaft enables the user to maintain a specific nose profile while increasing or decreasing wanted or unwanted high speed, or change the zero point without adding bleed.

On average, there are 20 - 22 “clicks” of adjustment depending on the shim arrangement and/or inner shaft offset. A fixed .060 bleed jet is fitted in the shaft above the PRS dual bleed check system.  The dual bleed check system takes the place of a bleed shim and bleed hole drilled in the piston.  By using the system, bleed can be easily changed in both directions without having to disassemble or alter the main build, thus saving time and reducing the cost of having multiple bleed shim and piston inventory.

The RHS cage is used to achieve a desired high or low speed curve shape. The cage accommodates both 1.350” and 1.475” diameter shims.  It is compatible with all PRS pistons, including Enhanced Linear Flow and Variable Bleed, and can also be used in conjunction with the digressive blow-off system to allow for a very digressive, or even regressive, curve profile.

The PS-6020-RHS shaft uses a three-piece inner shaft design.  After extensive testing for durability and repeatability, it was found that a one-piece shaft was more susceptible to heat expansion and uncontrollable fade throughout a run.  The three-piece system design allows for the inner shaft to expand and contract with temperature but never affect the preload of the cage/shims; therefore having no ill affects on the rebound curve.

All attributes combined, the RHS shaft and 22 “clicks” of adjustment essentially provide twenty-two different shocks in one, ultimately decreasing the amount of time a user has to spend on tuning at the rig or track.

The PS-6020-RHS is available in lengths of 5.0”, 6.0”, 7.0”,8.0”, and 9.0”, and can be purchased alone or incorporated into the price of a new shock.  A 2.1” eyelet and MO-8T mono ball are standard, but users may also request different eyelet and mono ball sizes.*

Users also have the option to utilize their existing standard shafts, by sending them to Penske Racing Shocks for modification.

The PS-6020-RHS shaft assembly is now available for use in 2010 competition in NASCAR, ARCA, and other professional racing series.

 

View the RHS Example Graph

 

Download the RHS Bill of Material

Download the RHS Flyer